Avoid deep slicing when no NdMapping deep index is supplied
Avoid deep slicing when no NdMapping deep index is supplied

ioam/holoviews,basnijholt/holoviews,basnijholt/holoviews,vascotenner/holoviews,vascotenner/holoviews,mjabri/holoviews,vascotenner/holoviews,mjabri/holoviews,ioam/holoviews,mjabri/holoviews,basnijholt/holoviews,ioam/holoviews